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Hello<b class=""> Community!</b></div>
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<span class="Apple-tab-span" style="white-space:pre"></span>Would like to as if anyone here have experience testing Half rate /AMR in osmo-nitb and Freeswitch. Basically we are testing it in our lab with our devices Samsung Note 9 and iPhone and we are having
issue / errors as observed during testing. Below are the details of the NITB we using:</div>
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<b class="">OpenBSC# show version</b></div>
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OpenBSC 1.1.0.76-0bbb9 (OpenBSC).</div>
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Copyright (C) 2008-2016 Harald Welte, Holger Freyther</div>
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Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt</div>
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Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr</div>
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License AGPLv3+: GNU AGPL version 3 or later <<a href="http://gnu.org/licenses/agpl-3.0.html" class="">http://gnu.org/licenses/agpl-3.0.html</a>></div>
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This is free software: you are free to change and redistribute it.</div>
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There is NO WARRANTY, to the extent permitted by law.</div>
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OpenBSC#</div>
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<b class="">Osmo running-config:</b></div>
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stats interval 5</div>
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line vty</div>
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no login</div>
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e1_input</div>
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e1_line 0 driver ipa</div>
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e1_line 0 port 0</div>
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no e1_line 0 keepalive</div>
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network</div>
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network country code 10</div>
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mobile network code 1</div>
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short name testnetwork</div>
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long name testnetwork</div>
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auth policy closed</div>
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authorized-regexp .*</div>
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location updating reject cause 13</div>
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encryption a5 0</div>
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neci 1</div>
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paging any use tch 0</div>
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rrlp mode none</div>
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mm info 1</div>
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handover 0</div>
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handover window rxlev averaging 10</div>
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handover window rxqual averaging 1</div>
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handover window rxlev neighbor averaging 10</div>
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handover power budget interval 6</div>
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handover power budget hysteresis 3</div>
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handover maximum distance 9999</div>
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timer t3113 60</div>
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timer t3103 1</div>
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timer t3101 10</div>
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timer t3109 1</div>
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timer t3122 10</div>
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timer t3105 1</div>
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dyn_ts_allow_tch_f 0</div>
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subscriber-keep-in-ram 1</div>
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bts 0</div>
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type sysmobts</div>
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band GSM900</div>
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cell_identity 1</div>
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location_area_code 1</div>
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base_station_id_code 63</div>
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ms max power 23</div>
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cell reselection hysteresis 4</div>
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rxlev access min 0</div>
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periodic location update 30</div>
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radio-link-timeout 32</div>
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channel allocator descending</div>
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rach tx integer 9</div>
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rach max transmission 7</div>
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channel-descrption attach 1</div>
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channel-descrption bs-pa-mfrms 5</div>
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channel-descrption bs-ag-blks-res 1</div>
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early-classmark-sending forbidden</div>
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ip.access unit_id 1000 0</div>
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oml ip.access stream_id 255 line 0</div>
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neighbor-list mode automatic</div>
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codec-support fr hr efr amr</div>
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amr tch-h modes 0</div>
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amr tch-h start-mode auto</div>
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trx 0</div>
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rf_locked 0</div>
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arfcn 122</div>
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nominal power 0</div>
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rsl e1 tei 0</div>
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timeslot 0</div>
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phys_chan_config CCCH+SDCCH4</div>
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hopping enabled 0</div>
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timeslot 1</div>
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phys_chan_config SDCCH8</div>
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hopping enabled 0</div>
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timeslot 2</div>
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phys_chan_config SDCCH8</div>
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hopping enabled 0</div>
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timeslot 3</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 4</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 5</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 6</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 7</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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trx 1</div>
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rf_locked 0</div>
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arfcn 42</div>
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nominal power 0</div>
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rsl e1 tei 0</div>
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timeslot 0</div>
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phys_chan_config CCCH+SDCCH4</div>
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hopping enabled 0</div>
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timeslot 1</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 2</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 3</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 4</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 5</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 6</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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timeslot 7</div>
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phys_chan_config TCH/H</div>
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hopping enabled 0</div>
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mncc-int</div>
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default-codec tch-f fr</div>
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default-codec tch-h amr</div>
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nitb</div>
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subscriber-create-on-demand</div>
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subscriber-create-on-demand random 100000 199999</div>
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no assign-tmsi</div>
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smpp</div>
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local-tcp-ip 127.0.0.1 2776</div>
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system-id password</div>
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policy closed</div>
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smpp-first</div>
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esme admin</div>
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password password</div>
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default-route</div>
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<b class="">NITB Logs:</b></div>
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<b class=""><br class="">
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<b class=""><br class="">
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<b class=""><br class="">
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<b class="">Not Working:</b></div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:1848 (bts=0) CHAN RQD: reason: call re-establishment (ra=0x49, neci=0x01, chreq_reason=0x02)</div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:1924 (bts=0,trx=1,ts=7,ss=0) Activating ARFCN(73) SS(0) lctype TCH_H r=CALL ra=0x49 ta=0</div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:595 (bts=0,trx=1,ts=7,pchan=TCH/H) Tx RSL Channel Activate with act_type=INITIAL</div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=0) state NONE -> ACTIVATION REQUESTED</div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:1603 (bts=0,trx=1,ts=7,ss=0) CHANNEL ACTIVATE ACK</div>
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Tue Aug 10 17:08:40 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=0) state ACTIVATION REQUESTED -> ACTIVE</div>
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Tue Aug 10 17:08:41 2021 <000a> bsc_api.c:415 Sending (bts=0,trx=1,ts=7,ss=0) ChanModify for speech: SPEECH_AMR on channel TCH_H</div>
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Tue Aug 10 17:08:41 2021 <0003> gsm_04_08_utils.c:517 -> CHANNEL MODE MODIFY mode=0x41
<font color="#ff2600" class=""><—————————————————————————————————————— This is what we observed, no Channel Modify Ack</font></div>
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Tue Aug 10 17:08:47 2021 <000a> bsc_api.c:139 Assignment T10 timeout on 0x15b4350</div>
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Tue Aug 10 17:08:47 2021 <0003> osmo_msc.c:82 MSC assign failure (do nothing).</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:1848 (bts=0) CHAN RQD: reason: call re-establishment (ra=0x49, neci=0x01, chreq_reason=0x02)</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:1924 (bts=0,trx=1,ts=7,ss=1) Activating ARFCN(73) SS(1) lctype TCH_H r=CALL ra=0x49 ta=0</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:595 (bts=0,trx=1,ts=7,pchan=TCH/H) Tx RSL Channel Activate with act_type=INITIAL</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=1) state NONE -> ACTIVATION REQUESTED</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:1603 (bts=0,trx=1,ts=7,ss=1) CHANNEL ACTIVATE ACK</div>
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Tue Aug 10 17:08:51 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=1) state ACTIVATION REQUESTED -> ACTIVE</div>
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Tue Aug 10 17:08:53 2021 <0017> smpp_smsc.c:746 [entropy] smpp_pdu_rx(00 00 00 10 00 00 00 15 00 00 00 00 00 00 00 24 )</div>
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Tue Aug 10 17:08:53 2021 <0017> smpp_smsc.c:595 [entropy] Rx Enquire Link</div>
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Tue Aug 10 17:08:53 2021 <0017> smpp_smsc.c:599 [entropy] Tx Enquire Link Response</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:1848 (bts=0) CHAN RQD: reason: call re-establishment (ra=0x47, neci=0x01, chreq_reason=0x02)</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:1924 (bts=0,trx=1,ts=6,ss=0) Activating ARFCN(73) SS(0) lctype TCH_H r=CALL ra=0x47 ta=0</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:595 (bts=0,trx=1,ts=6,pchan=TCH/H) Tx RSL Channel Activate with act_type=INITIAL</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=6,ss=0) state NONE -> ACTIVATION REQUESTED</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:1603 (bts=0,trx=1,ts=6,ss=0) CHANNEL ACTIVATE ACK</div>
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Tue Aug 10 17:09:03 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=6,ss=0) state ACTIVATION REQUESTED -> ACTIVE</div>
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Tue Aug 10 17:09:13 2021 <0004> abis_rsl.c:1358 (bts=0,trx=1,ts=7,ss=0) CONNECTION FAIL: RELEASING state ACTIVE CAUSE=0x01(Radio Link Failure)</div>
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Tue Aug 10 17:09:13 2021 <0004> abis_rsl.c:867 (bts=0,trx=1,ts=7,ss=0) RF Channel Release due to error: 1</div>
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Tue Aug 10 17:09:13 2021 <0004> abis_rsl.c:777 (bts=0,trx=1,ts=7,ss=0) DEACTivate SACCH CMD</div>
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Tue Aug 10 17:09:13 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=0) state ACTIVE -> RELEASE DUE ERROR</div>
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Tue Aug 10 17:09:13 2021 <0004> abis_rsl.c:939 (bts=0,trx=1,ts=7,ss=0) RF CHANNEL RELEASE ACK</div>
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Tue Aug 10 17:09:17 2021 <0004> abis_rsl.c:826 (bts=0,trx=1,ts=7,ss=0) is back in operation.</div>
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Tue Aug 10 17:09:17 2021 <0004> abis_rsl.c:1231 (bts=0,trx=1,ts=7,ss=0) state RELEASE DUE ERROR -> NONE</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:1848 (bts=0) CHAN RQD: reason: Location updating (ra=0x07, neci=0x01, chreq_reason=0x03)</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:1924 (bts=0,trx=0,ts=1,ss=0) Activating ARFCN(8) SS(0) lctype SDCCH r=LOCATION_UPDATE ra=0x07 ta=0</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:595 (bts=0,trx=0,ts=1,pchan=SDCCH8) Tx RSL Channel Activate with act_type=INITIAL</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:1231 (bts=0,trx=0,ts=1,ss=0) state NONE -> ACTIVATION REQUESTED</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:1603 (bts=0,trx=0,ts=1,ss=0) CHANNEL ACTIVATE ACK</div>
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Tue Aug 10 17:09:19 2021 <0004> abis_rsl.c:1231 (bts=0,trx=0,ts=1,ss=0) state ACTIVATION REQUESTED -> ACTIVE</div>
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<b class="">Osmo-sip-connector Logs:</b></div>
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<b class=""><br class="">
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<0000> sip.c:330 sip_release_call(): Release with MNCC cause(NORM_CALL_CLEAR)</div>
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<0000> sip.c:302 cause2status(): Mapping cause(NORM_CALL_CLEAR) to status(200)</div>
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<0000> sip.c:353 Ending leg(0x8dc700) in con</div>
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<0000> sip.c:223 SIP event(33) status(200) phrase(OK) 0x8dc700</div>
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<0000> sip.c:257 leg(0x8dc700) got resp to bye</div>
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<0000> sip.c:223 SIP event(9) status(200) phrase(Session Terminated) 0x8d7150</div>
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<0000> sip.c:265 leg(0x8d7150) got bye, releasing.</div>
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<0000> sip.c:223 SIP event(7) status(0) phrase(INVITE sent) 0x8d7150</div>
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<0000> sip.c:223 SIP event(1) status(100) phrase(Trying) (nil)</div>
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<0000> sip.c:89 Incoming call handle(0x8d96a0)</div>
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<0000> sip.c:223 SIP event(7) status(100) phrase(Trying) 0x8dc700</div>
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<0000> sip.c:330 sip_release_call(): Release with MNCC cause(RESOURCE_UNAVAIL)</div>
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<0000> sip.c:302 cause2status(): Mapping cause(RESOURCE_UNAVAIL) to status(503)</div>
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<0000> sip.c:341 Canceling leg(0x8dc700) in cnfd state</div>
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<0000> sip.c:223 SIP event(31) status(503) phrase(Service Unavailable) 0x8d7150</div>
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<0000> sip.c:242 leg(0x8d7150) unknown SIP status(503), releasing.</div>
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<0000> sip.c:248 Releasing other leg (0x8d6f30) with status(503)</div>
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<0001> mncc.c:54 cmd(0x204) never arrived for leg(2147483656) <font color="#ff2600" class=""><—————————————————————————————————————— Basically it didn’t arrived in B Leg.</font></div>
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<0001> mncc.c:495 call(2147483656) can not be found </div>
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Very well appreciated your help on this.</div>
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Best Regards,</div>
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Sonny</div>
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